Compensation of DC-Link Oscillation in Single-Phase-to-Single-Phase VSC/CSC and Power Density Comparison

This paper proposes a technique to reduce the low-frequency dc-link energy oscillation due to the pulsating single-phase energy flow in a single-phase-to-single-phase voltage source converter (VSC) and current source converter (CSC), which operate connected to the grid. This pulsating energy is the major factor for increasing the size of the passive components and power losses in the converter. Pulsation reduction is achieved by incorporating two auxiliary active switches and one passive energy storage element to the rectifier and inverter sides. Additionally, this paper presents the comparison of these converters (VSC/CSC) regarding efficiency and power density. Details of the control strategy are presented. Simulation and experimental results are provided to validate the theoretical approach.

[1]  M.H. Namin,et al.  Grid-connected PV with maximum power point tracking techniques implemented in real case study of variable radiation , 2008, 2008 11th Workshop on Control and Modeling for Power Electronics.

[2]  Montie Alves Vitorino,et al.  Compensation of DC link oscillation in single-phase VSI and CSI converters for photovoltaic grid connection , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[3]  C.B. Jacobina,et al.  Single-Phase to Single-Phase Full-Bridge Converter Operating With Reduced AC Power in the DC-Link Capacitor , 2010, IEEE Transactions on Power Electronics.

[4]  F. Wang,et al.  A High Power Density Single-Phase PWM Rectifier With Active Ripple Energy Storage , 2010, IEEE Transactions on Power Electronics.

[5]  Jih-Sheng Lai,et al.  Impact of SOFC fuel Cell Source Impedance on Low Frequency AC Ripple , 2006 .

[6]  R. Burgos,et al.  Study of Energy Storage Capacitor Reduction for Single Phase PWM Rectifier , 2009, 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition.

[7]  Montie Alves Vitorino,et al.  Compensation of DC link pulsation in single-phase static converters , 2011, XI Brazilian Power Electronics Conference.

[8]  Jung-Min Kwon,et al.  High-performance online UPS using three-leg-type converter , 2005, IEEE Trans. Ind. Electron..

[9]  Jung-Min Kwon,et al.  High-Performance Transformerless Online UPS , 2008, IEEE Transactions on Industrial Electronics.

[10]  Y.Y. Kolhatkar,et al.  Experimental Investigation of a Single-Phase UPQC With Minimum VA Loading , 2007, IEEE Transactions on Power Delivery.

[11]  Bingsen Wang,et al.  A single-phase current source solar inverter with reduced-size DC link , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[12]  J. Klima.  Analytical Investigation of Influence of DC-Link Voltage Ripple on PWM VSI Fed Induction Motor Drive , 2006, 2006 1ST IEEE Conference on Industrial Electronics and Applications.

[13]  G. Kimura,et al.  DC ripple current reduction on a single-phase PWM voltage source rectifier , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[14]  José R. Espinoza,et al.  PWM regenerative rectifiers: state of the art , 2005, IEEE Transactions on Industrial Electronics.

[15]  A. Bento,et al.  Integrated one-cycle control for three-leg universal active power filter , 2008, 2008 IEEE Power Electronics Specialists Conference.

[16]  T. Meynard,et al.  Interactions Between Fuel Cells and Power Converters: Influence of Current Harmonics on a Fuel Cell Stack , 2007, IEEE Transactions on Power Electronics.

[17]  M. Chomat,et al.  Torque and current ripple analytical investigation in space-vector PWM inverter fed induction motor drive under DC-bus voltage pulsation , 2008, 2008 18th International Conference on Electrical Machines.

[18]  Miguel Rodriguez,et al.  Simplified Voltage-Sag Filler for Line-Interactive Uninterruptible Power Supplies , 2008, IEEE Transactions on Industrial Electronics.

[19]  Sung-Jun Park,et al.  A novel high-performance voltage regulator for single-phase AC sources , 2001, IEEE Trans. Ind. Electron..

[20]  Jun-ichi Itoh,et al.  Comparison of boost chopper and active buffer as single to three phase converter , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[21]  B. Cassoret,et al.  Influence of a charging current with a sinusoidal perturbation on the performance of a lead-acid battery , 2005 .

[22]  B.-R. Lin,et al.  Implementation of a single-phase three-leg AC/AC converter with neutral-point diode-clamped scheme , 2002 .

[23]  Jun-ichi Itoh,et al.  A control method for a single-to-three-phase power converter with an active buffer and a charge circuit , 2010, 2010 IEEE Energy Conversion Congress and Exposition.

[24]  Stefan Östlund,et al.  An active DC link filter for two frequency electric locomotives , 1994 .